JavaFX does not exist using Java 9 and Intellij Idea

java maven intellij-idea javafx javafx-9
user3785637 picture user3785637 · Nov 19, 2017 · Viewed 20.6k times · Source

I am using Intellij Idea to compile a project that uses Maven dependencies and Intellij keeps telling me that my project has 50 something errors because JavaFX does not exist.

Intellij is not highlighting all the javafx dependencies in my code as errors, it is just that once I press the run and compile the program says that everything in JavaFX does not exists.

I tried to redownload the latest JDK (Java 9.0.1) and that did not fix it. I went into the Default Project Structure and Project Structure to make sure it was using the correct jdk and that did not fix the issue. All the jdks I am using seem to list the javafx packages as included in the project.

This is also only an issue for a particular project that I am working on with a friend. We may have to move over all our code into a new project, however I am not sure if that will fix anything.

Any suggestions?

Answer

y.bedrov picture y.bedrov · Nov 20, 2017

Try to set project language level to "9" in "Project Structure | Project"

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